Low-speed wind-tunnel studies were made of the effects of camber and twist and the effects of aspect ratio on the aerodynamic characteristics of parawings. To determine the effects of camber and twist, tests were made both with the conventional conical-type canopy, which provides camber and washout, and with a cylindrical-type canopy which provides essentially zero camber and twist. With regard to aspect ratio, tests were made of parawings having aspect ratios of 3 and 6; the range was thereby extended well beyond that of previous investigations. The degree to which airfoil and wing theory can be used to predict the aerodynamic characteristics of parawings was also investigated.

Description

[2], 36, [2] p. : ill. ; 28 cm.

Mode of access: Internet.

Notes

"January 1963"--Cover.

"Langley Research Center Langley Station, Hampton, Va."--Cover.

"National Aeronautics and Space Administration."

"Technical Note D-972."

Caption title.

This work is part of the library's "Parachute History Collection", donated by the Deutsches Zentrum für Luft- und Raumfahrt e.V. Institut für Flugsystemtechnik, through the American Institute of Aeronautics and Astronautics Aerodynamic Deceleration Systems Technical Committee.

Includes bibliographical references.

Series Statement

NASA technical note ; D-972

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Experimental and theoretical studies of the effects of camber and twist on the aerodynamic characteristics of parawings having normal aspect ratios of 3 and 6 /
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by Edward C. Polhamus and Rodger L. Naeseth.

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This work is part of the library's "Parachute History Collection", donated by the Deutsches Zentrum für Luft- und Raumfahrt e.V. Institut für Flugsystemtechnik, through the American Institute of Aeronautics and Astronautics Aerodynamic Deceleration Systems Technical Committee.

a|
Low-speed wind-tunnel studies were made of the effects of camber and twist and the effects of aspect ratio on the aerodynamic characteristics of parawings. To determine the effects of camber and twist, tests were made both with the conventional conical-type canopy, which provides camber and washout, and with a cylindrical-type canopy which provides essentially zero camber and twist. With regard to aspect ratio, tests were made of parawings having aspect ratios of 3 and 6; the range was thereby extended well beyond that of previous investigations. The degree to which airfoil and wing theory can be used to predict the aerodynamic characteristics of parawings was also investigated.